What us PROS use in the salon to do any type of Brazilian Blowout keratin smoothing treatments on our clients hair. This natural wooden boar bristle & nylon blend round brush with a natural cork handle that is easy to grip and will not slip out of your hand. This professional brush is unlike metal round brushes that snag your hair and become hot while blow drying causing unnecessary heat that can damage to your hair. This natural brush is gentle on your hair and scalp yet allows maximum tension to get the best smoothing results while blowdrying your hair. Great size for all lengths and types of hair.